Yes, most stupid people instant reaction is to grab it. A sensible person and secure driver, do not panic as well as try the breaks before the bottle goes under and remove that function. And if try the breaks and they work, why not stop?
Other things you try to point out are ridiculous. Just look at the list below:
Never look left or right: Of course you have to, otherwise you cannot look in the back mirrors or be safe when driving. However, that can be done and over in only 2 seconds.
Don´t talk to anybody in the car: Why not? You can´t talk to people at the same time as looking at the road and traffic in front of you? Of course you can, and if you need to look at somebody, then that can also take about 2 seconds.
Don´t look at the radio when changing tracks: Why not? That also only take 1-2 seconds if you need to change tracks.
Now we compare that to reaching down to the pedals in the car while driving. First, you will be totally detached from the road. You will not even know if you drive straight or not. After that a thing like that might take 5 seconds or more........
Do you get it now?